Specify the Substitution You Would Choose to Evaluate the Integrals $$\int ( t + 4 ) e ^ { t ^ { 2 } + 8 t + 1 } d t$$

Multiple Choice

Specify the substitution you would choose to evaluate the integrals. $$\int ( t + 4 ) e ^ { t ^ { 2 } + 8 t + 1 } d t$$

A) $u = t + 4$
B) $U = e ^ { t ^ { 2 } + 8 t + 1 }$
C) $u = t ^ { 2 } + 8 t + 1$
D) $u = ( t + 4 ) e$